The dilapidated homes in Guryong are built out of plywood, metal, sheets of plastic and cardboard boxes, yet residents have even established a postal service. Photograph: SeongJoon Cho/Bloomberg via Getty Images

Guryong’s pastor has
told the BBC: ‘When I first moved here there was a sense of community, even though we were poor. But when the developers came, we began to take sides and the neighbourhood became divided.’ Photograph: Kim Jae-Hwan/AFP